Dow Global Technolgoies LLC

Gregory J Brennan

Edward O Madenjian

Philip P Fontaine

Colin Li Pi Shan

Juan C Tuberquia

Bharat Indu Chaudhary

Morgan Mark Hughes

Susan G Brown

Rennisha R Wickham

Jan Bazen

Teresa Plumley Karjala

Linfeng Chen

Sean W Ewart

Lixin Sun

Kurt Frederick Hirsekorn

Daniela Ferrari

Brayden E Glad

Marlos Giuntini De Oliveira

Jon W Hobson

Yongchao Zeng

Elva L Lugo

Embodiments of the present disclosure are specifically related to LLDPE compositions produced from heterogeneous procatalyst compositions and blown and cast films incorporating these LLDPE compositions.

Ziegler-Natta catalyzed polyethylene resins and films incorporating same

Crosslinkable polymeric compositions comprising (a) 10 to 99 weight percent of an ethylene-based interpolymer having the following properties: (i) a density of 0.93 g/cmor less, (ii) a high-shear viscosity (V100) at 190&#xb0; C. and 10% strain of 1,200 Pa-s or less, and (iii) a shear thinning ratio (V0.1/V100) at 190&#xb0; C. and 10% strain of at least 8; and (b) 0 to less than 10 weight percent of a filler, where the ethylene-based interpolymer is not prepared in a high-pressure reactor. Such crosslinkable polymeric compositions may be employed as insulation layers in flexible power cables.

Flexible crosslinked cable insulation and methods for making flexible crosslinked cable insulation

Crosslinkable polymeric compositions comprising (a) 10 to 89 weight percent of an ethylene-based interpolymer having the following properties: (i) a density of 0.93 g/cm3 or less, (ii) a high-shear viscosity (V100) at 190 C and 10% strain of 1,200 Pa&#xb7;s or less, (iii) a shear thinning ratio (V0.1/V100) at 190 C and 10% strain of at least 8, and (iv) a melt index (I) greater than 1 g/10 minutes; and (b) 10 to less than 90 weight percent of a filler, where the ethylene-based interpolymer is not prepared in a high-pressure reactor. Such crosslinkable polymeric compositions may be employed as insulation layers in flexible power cables.

The invention provides a process to form a polymer composition comprising at least one ethylene/&#x3b1;-olefin/non-conjugated polyene interpolymer, and wherein the polymer composition has at least the following properties: a) a Mw/V0.1 ratio greater than, or equal to, 1.80 (g/mol)/(Pa&#xb7;s); said process comprising polymerizing one or more mixture(s) comprising ethylene, an &#x3b1;-olefin and a non-conjugated polyene in the presence of a catalyst system comprising a metal-ligand complex of Formula (I), as described herein.

Processes for the production of high molecular weight ethylene/alpha-olefin/non-conjugated interpolymers with low levels of long chain branching

The invention provides a process to form an ethylene/a-olefin interpolymer, comprising at least the following steps A) through C): A) polymerizing, in at least one reactor, at least one reaction mixture comprising ethylene and the a-olefin, in a solution polymerization, and in the presence of at least the following components I), II) and III): I) at least one compound of Structure 1, as described herein; II) at least one co-catalyst, as described herein; III) at least one compound of Structure 2, as described herein; B) separating the final polymer solution into at least a polymer-rich solution and a polymer-free solution; and optionally, at least a portion of the polymer-free solution is recycled back to the reactor; C) maintaining the level of the at least one compound of Structure 2 in the at least one reactor, from 100 ppm to 10,000 ppm, as described herein.

Process to form ethylene/&#x3b1;-olefin interpolymers

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Angleton, TX, United States of America

Gregory J Brennan